[llvm-commits] [llvm] r126377 - in /llvm/trunk: include/llvm/CodeGen/FunctionLoweringInfo.h lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

[Cameron Zwarich]

Author: zwarich
Date: Thu Feb 24 04:00:13 2011
New Revision: 126377

URL: http://llvm.org/viewvc/llvm-project?rev=126377&view=rev
Log:
Track blocks visited in reverse postorder.

Modified:
    llvm/trunk/include/llvm/CodeGen/FunctionLoweringInfo.h
    llvm/trunk/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

Modified: llvm/trunk/include/llvm/CodeGen/FunctionLoweringInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/FunctionLoweringInfo.h?rev=126377&r1=126376&r2=126377&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/FunctionLoweringInfo.h (original)
+++ llvm/trunk/include/llvm/CodeGen/FunctionLoweringInfo.h Thu Feb 24 04:00:13 2011
@@ -106,6 +106,10 @@
     LiveOutInfo() : NumSignBits(0), KnownOne(1, 0), KnownZero(1, 0) {}
   };
 
+  /// VisitedBBs - The set of basic blocks visited thus far by instruction
+  /// selection.
+  DenseSet<const BasicBlock*> VisitedBBs;
+
   /// PHINodesToUpdate - A list of phi instructions whose operand list will
   /// be updated after processing the current basic block.
   /// TODO: This isn't per-function state, it's per-basic-block state. But

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp?rev=126377&r1=126376&r2=126377&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp Thu Feb 24 04:00:13 2011
@@ -219,6 +219,7 @@
   CatchInfoFound.clear();
 #endif
   LiveOutRegInfo.clear();
+  VisitedBBs.clear();
   ArgDbgValues.clear();
   ByValArgFrameIndexMap.clear();
   RegFixups.clear();

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp?rev=126377&r1=126376&r2=126377&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Thu Feb 24 04:00:13 2011
@@ -831,6 +831,10 @@
 #ifndef NDEBUG
     CheckLineNumbers(LLVMBB);
 #endif
+
+    if (OptLevel != CodeGenOpt::None)
+      FuncInfo->VisitedBBs.insert(LLVMBB);
+
     FuncInfo->MBB = FuncInfo->MBBMap[LLVMBB];
     FuncInfo->InsertPt = FuncInfo->MBB->getFirstNonPHI();